:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --success-color: #16a34a;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --background: #ffffff;
    --background-light: #f9fafb;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--background);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: var(--background);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-color);
    font-size: 1.25rem;
    font-weight: 700;
}

.logo img {
    border-radius: 8px;
    object-fit: cover;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.cart-link {
    position: relative;
    display: flex;
    align-items: center;
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    transition: 0.3s;
}

.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 5rem 0;
    text-align: center;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 800;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-button {
    display: inline-block;
    background: white;
    color: var(--primary-color);
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1.125rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.benefits {
    padding: 5rem 0;
    background: var(--background-light);
}

.benefits h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: var(--text-color);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.benefit-card {
    background: var(--background);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.benefit-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.benefit-card p {
    color: var(--text-light);
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 1.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-light);
    font-size: 1rem;
}

.about-products {
    padding: 5rem 0;
}

.about-products h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
}

.about-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: var(--text-light);
}

.comparison-table {
    padding: 5rem 0;
    background: var(--background-light);
}

.comparison-table h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
}

.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    background: var(--background);
    border-collapse: collapse;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

thead {
    background: var(--primary-color);
    color: white;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

tbody tr:hover {
    background: var(--background-light);
}

.products {
    padding: 5rem 0;
}

.products h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--background);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
    padding: 1.5rem;
}

.product-info h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.product-description {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all 0.3s;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--secondary-color);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    background: #15803d;
}

.btn-secondary {
    background: var(--text-light);
    color: white;
}

.btn-secondary:hover {
    background: var(--text-color);
}

.btn-full {
    width: 100%;
}

.product-detail {
    padding: 3rem 0;
}

.product-detail-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.product-detail-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.product-detail-info h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.product-detail-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.product-detail-description {
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.product-detail-description p {
    margin-bottom: 1rem;
}

.product-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.product-features {
    background: var(--background-light);
    padding: 2rem;
    border-radius: 12px;
}

.product-features h2 {
    margin-bottom: 1.5rem;
}

.features-list {
    list-style: none;
}

.features-list li {
    padding: 0.75rem 0;
    padding-left: 2rem;
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

.features-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: 700;
    font-size: 1.25rem;
}

.cart-page,
.checkout-page,
.contact-page,
.about-page {
    padding: 3rem 0;
    min-height: 60vh;
}

.page-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
}

.cart-items {
    background: var(--background);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 2rem;
    margin-bottom: 2rem;
}

.cart-item {
    display: grid;
    grid-template-columns: 100px 1fr auto;
    gap: 1.5rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item-image img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 8px;
}

.cart-item-info h3 {
    margin-bottom: 0.5rem;
}

.cart-item-price {
    font-weight: 700;
    color: var(--primary-color);
}

.cart-item-remove {
    background: #dc2626;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
}

.cart-summary {
    background: var(--background);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 2rem;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.empty-cart {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-cart p {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.contact-card {
    background: var(--background);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
}

.contact-icon {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact-card h3 {
    margin-bottom: 1rem;
}

.contact-form,
.checkout-form {
    background: var(--background);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.success-page {
    padding: 5rem 0;
}

.success-message {
    text-align: center;
    background: var(--background);
    padding: 4rem 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--success-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
}

.success-message h2 {
    margin-bottom: 1rem;
}

.success-message p {
    color: var(--text-light);
    margin-bottom: 2rem;
}

footer {
    background: var(--text-color);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-section p {
    opacity: 0.8;
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    color: white;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.social-links a:hover {
    opacity: 1;
}

.footer-links {
    list-style: none;
}

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 1;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
}

.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--text-color);
    color: white;
    padding: 1.5rem;
    z-index: 9999;
    display: none;
}

.cookie-consent.show {
    display: block;
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.cookie-content p {
    flex: 1;
}

.cookie-content a {
    color: white;
    text-decoration: underline;
}

.cookie-buttons {
    display: flex;
    gap: 1rem;
}

.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    background: var(--success-color);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
    }
    to {
        transform: translateX(0);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--background);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-content h1 {
        font-size: 1.75rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .product-detail-container {
        grid-template-columns: 1fr;
    }

    .benefits-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }

    .stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .cookie-content {
        flex-direction: column;
        text-align: center;
    }

    .cart-item {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .stats {
        grid-template-columns: 1fr;
    }
}